In the past week, the Nationals played six games and committed seven errors on defense. Only one of those errors — Adam LaRoche’s fielding error in the fourth inning of Saturday’s 4-3 11-inning loss — could directly be linked to contributing to a loss, but, as a whole, the Nationals have continued their uneven defensive play. It remains one of their most glaring weaknesses through a disappointing first two months and a 31-31 record. They have the ability to be spectacular and consistent but have lacked much of the latter.A month ago, the Nationals led the majors in errors. Just when the pace of errors seemed to slow down and Ryan Zimmerman appeared to look more comfortable throwing across the diamond, the Nationals inflict a week like the past one upon themselves. They lead the majors in errors (tied with the Dodgers, Angels and Astros) with 47 through 62 games, more than a third of the way through the season. They committed 94 errors in 162 games last season.This week, Zimmerman made two more throwing errors to add to his major league leading 11, of which 10 are throwing. The normally steady LaRoche made two errors and brought his season total to five; he made only seven during his Gold Glove-winning 2012 season. Understandably, Anthony Rendon made two errors this week, while playing second base for the time in the majors. After an early rash of errors, Ian Desmond hasn’t committed one since his seventh of the season on April 21.